Modeling of High-Energy Particles and Radiation Production for Multipetawatt Laser Facilities

Figure 15

Polar graphs showing the prompt doses released following a 3.5 kJ shot on (a) a TS1 target maximizing X-ray bremsstrahlung emission (left: doses directly induced by photons; right: doses induced by photoinduced neutrons); (b) a TS2 target maximizing proton emission (left: doses directly induced by protons; right: doses induced by proton-induced neutrons). The arrow represents the direction of the laser beam (incident normally to the target surface). The inner circle represents a 5 m radius interaction chamber, while the most external circle represents the size of the whole experimental hall. The various features visible in this figure represent diagnostics and target inserters. These just represent a simple “case study” and do not necessarily refer to a concrete configuration of the interaction chamber and experimental hall during a real experiment.

(a)

(b)